echoesof.science school library
Free science lessons for the classroom, for three ages. No ads, no tracking, no accounts. Every fact has a source you can check.
GravityWhy things fall, from drop races to measuring gAges 6–7 · Ages 10–11 · Ages 15–16SoundVibrations, echoes, decibels and the volcano heard 4,800 km awayAges 6–7 · Ages 10–11 · Ages 15–16Light and colourShadows, mirrors, rainbows and why the sky is blueAges 6–7 · Ages 10–11 · Ages 15–16MagnetismPush and pull, compasses, electromagnets and Earth's magnetic shieldAges 6–7 · Ages 10–11 · Ages 15–16Electricity and circuitsCircuits, switches, conductors and Ohm's lawAges 6–7 · Ages 10–11 · Ages 15–16Solids, liquids and gasesMelting, boiling, particles and why ice floatsAges 6–7 · Ages 10–11 · Ages 15–16Plants and photosynthesisWhat plants need, leaves, roots and photosynthesisAges 6–7 · Ages 10–11 · Ages 15–16The heart and lungsHeartbeat, breathing, alveoli and cardiac outputAges 6–7 · Ages 10–11 · Ages 15–16The water cyclePuddles, clouds and rain: the journey that never stopsAges 6–7 · Ages 10–11 · Ages 15–16Day, night and seasonsA spinning, tilted Earth: why days get longer and summers get warmerAges 6–7 · Ages 10–11 · Ages 15–16Forces and motionPushes, pulls and Newton's laws, from toy cars to F = m·aAges 6–7 · Ages 10–11 · Ages 15–16FrictionGrippy or slippy? The force that slows things downAges 6–7 · Ages 10–11 · Ages 15–16Energy and its formsStored or working? How energy makes things happenAges 6–7 · Ages 10–11 · Ages 15–16Heat and temperatureHot, cold and in between: how heat movesAges 6–7 · Ages 10–11 · Ages 15–16WeatherRain, wind and sunshine: measuring and forecasting the weatherAges 6–7 · Ages 10–11 · Ages 15–16Climate and climate changeClimate zones, the greenhouse effect and the evidence for a warming EarthAges 6–7 · Ages 10–11 · Ages 15–16VolcanoesMagma and lava, runny and sticky eruptions, and where volcanoes are foundAges 6–7 · Ages 10–11 · Ages 15–16Earthquakes and plate tectonicsMoving plates, stuck faults, seismic waves and how to stay safeAges 6–7 · Ages 10–11 · Ages 15–16Rocks and the rock cycleIgneous, sedimentary and metamorphic rocks, and how rocks are recycledAges 6–7 · Ages 10–11 · Ages 15–16FossilsHow bones become stone, trace fossils, Mary Anning and dating rocksAges 6–7 · Ages 10–11 · Ages 15–16DinosaursWhat dinosaurs were, how we know, why they died out, and why birds are dinosaursAges 6–7 · Ages 10–11 · Ages 15–16Evolution and natural selectionVariation, inheritance and survival: how living things change over many generationsAges 6–7 · Ages 10–11 · Ages 15–16CellsThe tiny building blocks of every living thingAges 6–7 · Ages 10–11 · Ages 15–16DNA and inheritanceThe instructions in every cell, genes and how traits are passed onAges 6–7 · Ages 10–11 · Ages 15–16Microbes: bacteria, viruses and fungiBacteria, viruses, fungi, yeast and doublingAges 6–7 · Ages 10–11 · Ages 15–16The immune systemBarriers, white blood cells, antibodies and memoryAges 6–7 · Ages 10–11 · Ages 15–16VaccinesHow vaccines train the body's defenders, and how they protect othersAges 6–7 · Ages 10–11 · Ages 15–16DigestionThe journey of food, from the mouth to the large intestineAges 6–7 · Ages 10–11 · Ages 15–16TeethMilk teeth, enamel, acid attacks and fluorideAges 6–7 · Ages 10–11 · Ages 15–16Bones and the skeleton206 bones, joints, growing bones and leversAges 6–7 · Ages 10–11 · Ages 15–16Muscles and movementPulling in pairs, three kinds of muscle, fatigue and sliding filamentsAges 6–7 · Ages 10–11 · Ages 15–16The brain and nervesMessages in and out, brain parts, neurons and reaction timeAges 6–7 · Ages 10–11 · Ages 15–16The five sensesSight, hearing, smell, taste, touch and the receptors behind themAges 6–7 · Ages 10–11 · Ages 15–16How eyes workPupil, lens, retina, blind spot and the power of the eyeAges 6–7 · Ages 10–11 · Ages 15–16How ears workEardrums, snail-shaped cochleas, hair cells and why loud noise mattersAges 6–7 · Ages 10–11 · Ages 15–16SleepDreams, body clocks, sleep pressure and how many hours you needAges 6–7 · Ages 10–11 · Ages 15–16Food and nutrientsFood groups, nutrients, sugar and teeth, and reading food labelsAges 6–7 · Ages 10–11 · Ages 15–16Exercise and the bodyHeartbeats, breathing, muscles and how much activity you needAges 6–7 · Ages 10–11 · Ages 15–16Growing and the human life cycleBabies, children, teenagers and adults: how we grow and changeAges 6–7 · Ages 10–11 · Ages 15–16Animal life cyclesButterflies, frogs, chickens and mammals: how animals grow and changeAges 6–7 · Ages 10–11 · Ages 15–16Food chains and websGrass, rabbits and foxes: who eats whom, and where the energy goesAges 6–7 · Ages 10–11 · Ages 15–16HabitatsDeserts, sea ice and the underside of a log: where living things live and whyAges 6–7 · Ages 10–11 · Ages 15–16EcosystemsLiving and non-living things working together, from a tide pool to a national parkAges 6–7 · Ages 10–11 · Ages 15–16BiodiversityThe variety of all life on Earth: counting it, needing it and protecting itAges 6–7 · Ages 10–11 · Ages 15–16Classifying living thingsSorting life into groups, from 'has a backbone?' to Canis lupusAges 6–7 · Ages 10–11 · Ages 15–16InsectsSix legs, three body parts, and more kinds than any other animal groupAges 6–7 · Ages 10–11 · Ages 15–16Bees and pollinationHow bees carry pollen, make honey and dance to share directionsAges 6–7 · Ages 10–11 · Ages 15–16Birds and flightFeathers, wings and lift: how birds take to the airAges 6–7 · Ages 10–11 · Ages 15–16FishGills, fins and swim bladders: life under waterAges 6–7 · Ages 10–11 · Ages 15–16MammalsFur, milk and warm bodies: what makes a mammalAges 6–7 · Ages 10–11 · Ages 15–16Reptiles and amphibiansScales or slime? Frogs, snakes, turtles and their eggsAges 6–7 · Ages 10–11 · Ages 15–16Animal migrationLong journeys: why animals migrate and how they find the wayAges 6–7 · Ages 10–11 · Ages 15–16Camouflage and adaptationHide and seek in nature: how animals blend in, warn and foolAges 6–7 · Ages 10–11 · Ages 15–16The oceanSalt, light and pressure: a dive from the surface to the deepest trenchAges 6–7 · Ages 10–11 · Ages 15–16Coral reefsTiny animals, giant reefs: how corals build, feed and bleachAges 6–7 · Ages 10–11 · Ages 15–16RainforestsFrom the dark forest floor to the windy treetops: life in the wettest forestsAges 6–7 · Ages 10–11 · Ages 15–16DesertsHot days, cold nights and almost no rain: how life survives in the driest placesAges 6–7 · Ages 10–11 · Ages 15–16The polar regionsMidnight sun, months of darkness and ice kilometres thick: life at the ends of the EarthAges 6–7 · Ages 10–11 · Ages 15–16SoilRock crumbs, rotting leaves, air, water and worms: what soil is and why it mattersAges 6–7 · Ages 10–11 · Ages 15–16TreesRoots, rings and leaves: how trees live, grow and store carbonAges 6–7 · Ages 10–11 · Ages 15–16
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